摘要
生长冗余概念是由盛承发在１９９０年首先提出来的。本文从作物个体与群体对立统一关系角度出发提出了作物生长冗余的另一个解释。盛承发提出的随机波动环境假说可以导致生长冗余的产生；但是，他从物种利益角度出发解释生物进化还有待商榷。本文还综述了黄土高原半干旱雨养农业地区小麦根系生长冗余问题，并根据前人工作提出适度增加播种深度和苗期叶片刈割等高产栽培措施。
The concept of growth redundancy in crops was first proposed by Sheng Chengfa in 1990.From thepoint of view of dialectical relationship between individuals and populations we proposed anotherinterpretation of why growth redundancy in crops exists.The stochastic fluctuating environment hypothesisadvanced by Sheng can indeed result in growth redundancy;but Sheng seems to be wrong when he explainedevolution in the light of being good for species.This paper concretely analyzes the growth redundancy in theroots of spring wheat in the rainfed environments of semiarid regions in the Ioess plateau.On the basis ofprevious works the cultivating strategies such as increasing planting depth and leaf pruning are suggested.
出处
《草业学报》
CSCD
1995年第3期17-22,共6页
Acta Prataculturae Sinica
基金
甘肃省科委资助项目
关键词
选择
小麦
生长冗余
抗旱性
栽培
Selection,wheat,growth redundancy,drought resistance
